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/*
Copyright (c) 2014 VMware, Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package esxcli
import (
"flag"
"fmt"
"strings"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/internal"
)
type Command struct {
name []string
args []string
}
type CommandInfoItem struct {
Name string `xml:"name"`
DisplayName string `xml:"displayName"`
Help string `xml:"help"`
}
type CommandInfoParam struct {
CommandInfoItem
Aliases []string `xml:"aliases"`
Flag bool `xml:"flag"`
}
type CommandInfoHint struct {
Key string `xml:"key"`
Value string `xml:"value"`
}
type CommandInfoHints []CommandInfoHint
type CommandInfoMethod struct {
CommandInfoItem
Param []CommandInfoParam `xml:"param"`
Hints CommandInfoHints `xml:"hints"`
}
type CommandInfo struct {
CommandInfoItem
Method []*CommandInfoMethod `xml:"method"`
}
func NewCommand(args []string) *Command {
c := &Command{}
for i, arg := range args {
if strings.HasPrefix(arg, "-") {
c.args = args[i:]
break
} else {
c.name = append(c.name, arg)
}
}
return c
}
func (c *Command) Namespace() string {
return strings.Join(c.name[:len(c.name)-1], ".")
}
func (c *Command) Name() string {
return c.name[len(c.name)-1]
}
func (c *Command) Method() string {
return "vim.EsxCLI." + strings.Join(c.name, ".")
}
func (c *Command) Moid() string {
return "ha-cli-handler-" + strings.Join(c.name[:len(c.name)-1], "-")
}
// Parse generates a flag.FlagSet based on the given []CommandInfoParam and
// returns arguments for use with methods.ExecuteSoap
func (c *Command) Parse(params []CommandInfoParam) ([]internal.ReflectManagedMethodExecuterSoapArgument, error) {
fs := flag.NewFlagSet(strings.Join(c.name, " "), flag.ExitOnError)
vals := make([]flags.StringList, len(params))
for i, p := range params {
v := &vals[i]
for _, a := range p.Aliases {
a = strings.TrimPrefix(a[1:], "-")
fs.Var(v, a, p.Help)
}
}
err := fs.Parse(c.args)
if err != nil {
return nil, err
}
args := []internal.ReflectManagedMethodExecuterSoapArgument{}
for i, p := range params {
if len(vals[i]) != 0 {
args = append(args, c.Argument(p.Name, vals[i]...))
}
}
return args, nil
}
func (c *Command) Argument(name string, args ...string) internal.ReflectManagedMethodExecuterSoapArgument {
var vars []string
for _, arg := range args {
vars = append(vars, fmt.Sprintf("<%s>%s</%s>", name, arg, name))
}
return internal.ReflectManagedMethodExecuterSoapArgument{
Name: name,
Val: strings.Join(vars, ""),
}
}
func (h CommandInfoHints) Formatter() string {
for _, hint := range h {
if hint.Key == "formatter" {
return hint.Value
}
}
return "simple"
}
func (h CommandInfoHints) Fields() []string {
for _, hint := range h {
if strings.HasPrefix(hint.Key, "fields:") {
return strings.Split(hint.Value, ",")
}
}
return nil
}
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